<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .a{
            background-color: aqua;
        }
        .b{
            background-color: blue;
            float: left;
        }
        .c{
            background-color: brown;
            height: 200px;
        }
        div{
        color: yellow;
    }

    </style>
</head>

<body>
    <div>
        q
        <div class="a">j</div>
        <div class="b">k</div>
        <div class="c">l</div>

    </div>

</body>

</html>